Question

Redefine the function $f\left(x\right)=|x-1|+|1+x|$. Draw the graph and write its Domain and Range.

Answer 1

x y

-1 2

0 2

1 2

2 4

3 6

Domain $(-\infty ,\infty ),\{x|x\in R\}$

Range $[0,\infty ),\{y|y\ge 0\}$